CN110056447A - Engine cylinder cap - Google Patents
Engine cylinder cap Download PDFInfo
- Publication number
- CN110056447A CN110056447A CN201910282764.7A CN201910282764A CN110056447A CN 110056447 A CN110056447 A CN 110056447A CN 201910282764 A CN201910282764 A CN 201910282764A CN 110056447 A CN110056447 A CN 110056447A
- Authority
- CN
- China
- Prior art keywords
- water chamber
- cylinder head
- head ontology
- engine
- cylinder cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/242—Arrangement of spark plugs or injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of engine cylinder caps, including cylinder head ontology, fixation offers water inlet at the top of one end of cylinder head ontology, cylinder head ontology is fixed with upper water chamber close to the side inner tip of water inlet, cylinder head ontology is fixed with lower water chamber close to the side inner bottom of water inlet, water chamber partition is fixed at the midfeather of upper water chamber and lower water chamber, the bottom of lower water chamber is fixed close to the outside of cylinder head ontology and offers water outlet, and close to the outer edge of cylinder head ontology, nearby fixation offers venthole to water chamber partition.Whereby, engine cylinder cap of the invention, simple and reasonable, good heat dissipation effect have certain use value and promotional value.
Description
Technical field
The present invention relates to engine cylinder cap technical fields, especially with regard to a kind of engine cylinder cap.
Background technique
Cylinder head is at the top of blanket gas cylinder sleeve, cylinder head bottom and cylinder jacket, top land to collectively form combustion chamber, gas
Cylinder cap bottom temp is very high, and water chamber is arranged usually at the top of cylinder head using coolant liquid and carries out pressure cooling to cylinder head.Gas
Cylinder cap is generally all cast by high-quality gray cast iron or alloy cast iron, and the gasoline engine of car then mostly uses aluminium alloy cylinder lid, and aluminium closes
Golden thermal conductivity is good, is conducive to the compression ratio for improving engine, secondly, casting character is excellent, suitable for the part of cast structure complexity,
But the cooling that must be noted that aluminium alloy cylinder lid controls the temperature of its baseplane at 300 DEG C hereinafter, otherwise, baseplane overheat will
It generates and is plastically deformed and warpage.
The effect of cylinder head is sealing cylinder, combustion space is collectively formed with piston, and bear the work of high-temperature high-pressure fuel gas
Bear mechanical load caused by gas force and fastening bolt cylinder with, cylinder head, while due also to contacted with high-temperature fuel gas and
Very high thermic load is born, in order to guarantee the excellent sealing of cylinder, cylinder head can neither be damaged, and can not be deformed, for this purpose, cylinder
Lid should have enough strength and stiffness, and cylinder head is complicated box-shaped part, be machined with Valve seat hole thereon,
Valve guide hole, spark plug mounting hole (gasoline engine) or mounting hole of oil sprayer, be also cast in cylinder head water jacket, entering and exhaust channel and
A part of combustion chamber or combustion chamber, be also machined with if camshaft is mounted in cylinder head, in cylinder head camshaft bearing bore or
Cam bearing pedestal and its oil leab, the cylinder of water-cooled engine are stamped three kinds of monoblock type, sectional type and monomer-type structure shapes
Formula, in multicylinder engine, whole cylinders share a cylinder head, then the cylinder head is referred to as integrated cylinder cover；If every two
The lid of cylinder one or three cylinders one lid, then the cylinder head is sectional type cylinder head；Air cooling engine is monomer-type cylinder head.
Only has a water chamber at the top of the cylinder head of traditional technology, usually it is cooling to be introduced into water cavity around cylinder jacket for coolant liquid
Cylinder jacket, then cylinder head water chamber is entered by cylinder head bottom, it is flowed out at the top of cylinder head again after cooling cylinder head, traditional technology
Cylinder head scheme cools down cylinder head since coolant liquid first cools down cylinder jacket again, and cylinder interior heat is easy quilt when engine cold-start
Coolant liquid is taken away, and causing engine start difficulty, water temperature to rise, slow, engine thermal efficiency is low, traditional technology cylinder head bottom water
The slow poor heat radiation of flow velocity degree, poor heat radiation be easy to cause fuel injector to overheat clamping stagnation around fuel injector, influences engine performance.Cause
This, though a kind of engine cylinder cap is needed to solve existing shortcoming in the prior art.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
Simple and reasonable the purpose of the present invention is to provide a kind of engine cylinder cap, good heat dissipation effect has one
Fixed use value and promotional value.
To achieve the above object, the present invention provides a kind of engine cylinder cap, including cylinder head ontology, cylinder head ontologies
One end at the top of fixation offer water inlet, cylinder head ontology is fixed with upper water chamber close to the side inner tip of water inlet,
Cylinder head ontology is fixed with lower water chamber close to the side inner bottom of water inlet, consolidates at the midfeather of upper water chamber and lower water chamber
Surely it is equipped with water chamber partition, fixation offers water outlet close to the outside of cylinder head ontology for the bottom of lower water chamber, and water chamber partition is close
Nearby fixation offers venthole to the outer edge of cylinder head ontology.
In a preferred embodiment, water chamber partition is located at the midfeather of upper water chamber and lower water chamber, and water chamber every
Plate is funnel-shaped to recessed.
In a preferred embodiment, upper water chamber is bigger than lower water chamber.
In a preferred embodiment, upper water chamber and lower water chamber are connected to by the intermediate hole for installing fuel injector, and water chamber
The outer edge of partition offers the aperture of connection upper water chamber and lower water chamber.
In a preferred embodiment, water outlet is located at the outside that cylinder head ontology is leaned in lower water chamber bottom.
In a preferred embodiment, the top of upper water chamber is fixed offers inlet opening, and the bottom fixation of lower water chamber is opened
Equipped with drainage hole.
Compared with prior art, engine cylinder cap according to the present invention, simple and reasonable, good heat dissipation effect has
Certain use value and promotional value.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of engine cylinder cap according to an embodiment of the present invention.
Fig. 2 is the portion A schematic enlarged-scale view in Fig. 1.
Fig. 3 is the portion B schematic enlarged-scale view in Fig. 1.
Main appended drawing reference explanation:
1- cylinder head ontology, 2- water inlet, 3- upper water chamber, 4- lower water chamber, 5- water chamber partition, 6- water outlet, 7- venthole.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1 to Figure 3, Fig. 1 is the front view structure signal of engine cylinder cap according to an embodiment of the present invention
Figure；Fig. 2 is the portion A schematic enlarged-scale view in Fig. 1；Fig. 3 is the portion B schematic enlarged-scale view in Fig. 1.
A kind of engine cylinder cap according to the preferred embodiment of the present invention, including cylinder head ontology 1, by using cooling
Liquid first cools down cylinder head ontology 1 and cools down cylinder block again, and engine is made to make cooling water by the heat in cylinder head ontology 1 in cold start-up
It taking cylinder jacket periphery to, makes internal cylinder temperature rapid increase, engine is easy starting, water temperature rises fast, engine thermal efficiency height,
Fixed at the top of one end of cylinder head ontology 1 to offer water inlet 2, cylinder head ontology 1 is solid close to the side inner tip of water inlet 2
Surely it is equipped with upper water chamber 3, cylinder head ontology 1 is fixed with lower water chamber 4 close to the side inner bottom of water inlet 2, and upper water chamber 3 is under
Water chamber partition 5 is fixed at the midfeather of water chamber 4, fixation opens up close to the outside of cylinder head ontology 1 for the bottom of lower water chamber 4
There is water outlet 6, nearby fixation offers venthole 7 to water chamber partition 5 close to the outer edge of cylinder head ontology 1, by cylinder head
The optimization of inside structure of ontology 1 designs, make engine start faster, water temperature rising becomes faster, engine thermal efficiency is effectively mentioned
It is high.
In a preferred embodiment, water chamber partition 5 is located at the midfeather of upper water chamber 3 and lower water chamber 4, and water chamber
Partition 5 is funnel-shaped to recessed, and water flow is enable to concentrate cooling fuel injector, into lower water chamber 4 after flowed around from centre, water
Flow velocity degree takes away the heat among bottom fastly, in time, and fuel injector and 1 bottom coohng effect of cylinder head ontology are good；Under upper water chamber 3 compares
Water chamber 4 is big；Upper water chamber 3 and lower water chamber 4 are connected to by the intermediate hole for installing fuel injector, and the outer edge of water chamber partition 5 is opened
Aperture equipped with connection upper water chamber 3 and lower water chamber 4.
In a preferred embodiment, water outlet 6 is located at the outside that cylinder head ontology 1 is leaned in 4 bottom of lower water chamber；Upper water chamber
3 top is fixed to offer inlet opening, and the bottom fixation of lower water chamber 4 offers drainage hole.
In practical applications, the working principle of engine cylinder cap of the invention is as follows: in use, relevant staff is logical
It crosses and coolant liquid is added by the inlet opening opened up fixed at the top of upper water chamber 3, then coolant liquid flows from top to bottom automatically, completes first
Cooling cylinder head ontology 1 cools down the processing of cylinder block again, and then engine makes coolant liquid will be in cylinder head ontology 1 in cold start-up
Heat takes cylinder jacket periphery to, then internal cylinder temperature will rapid increase, engine be also easier to starting, water temperature rise speed
It becomes faster, engine thermal efficiency raising, and completes to separate up and down by upper water chamber 3 and lower water chamber 4 by using by water chamber partition 5,
Funnel is designed by water chamber partition 5, then water flow just can quickly concentrate cooling fuel injector, and forced water flows through fuel injector
Around, reinforce the cooling to fuel injector, water outlet 6 is offered by the outside of cylinder head ontology 1 by 4 bottom of lower water chamber, with this
Coolant liquid flows after entering lower water chamber 4 from centre around, and water velocity is accelerated fastly, timely and effectively to take away among bottom
Heat efficiently accomplishes to 1 bottom coohng of fuel injector and cylinder head ontology, and is finally completed whole works of this engine cylinder cover
Make.
In short, engine cylinder cap of the invention has the following beneficial effects:
1, cylinder head ontology first being cooled down by using coolant liquid and cooling down cylinder block again, engine is made to make cooling water in cold start-up
It takes the heat in cylinder head ontology to cylinder jacket periphery, makes internal cylinder temperature rapid increase, engine is easy to start, in water temperature
Rise fast, engine thermal efficiency height；
2, by using the upper water chamber and lower water chamber separated up and down, water chamber partition is funnel-shaped, and water flow is enable to concentrate cooling
Fuel injector, into lower water chamber after flowed around from centre, water velocity is fast, takes away heat among bottom in time, fuel injector
And cylinder head body bottom portion good cooling results；
3, designed by optimization of inside structure to cylinder head ontology, make engine start faster, water temperature rising becomes faster, sends out
The motivation thermal efficiency effectively improves, and cylinder head body bottom portion water velocity becomes faster enhances heat dissipation effect, makes engine
Performance is maximumlly played, and very scientific and reasonable in structure design, and work operational safety is effective, has certain make
With value and promotional value.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (6)
1. a kind of engine cylinder cap, which is characterized in that fixed at the top of one end of the cylinder head ontology including cylinder head ontology
Water inlet is offered, the cylinder head ontology is fixed with upper water chamber, the gas close to the side inner tip of the water inlet
Cylinder cap ontology is fixed with lower water chamber close to the side inner bottom of the water inlet, in the upper water chamber and the lower water chamber
Between interval be fixed with water chamber partition, close to the outside of cylinder head ontology, fixation offers water outlet for the bottom of the lower water chamber
Mouthful, close to the outer edge of cylinder head ontology, nearby fixation offers venthole to the water chamber partition.
2. engine cylinder cap as described in claim 1, which is characterized in that the water chamber partition is located at the upper water chamber and institute
It states at the midfeather of lower water chamber, and the water chamber partition is to recessed, it is funnel-shaped.
3. engine cylinder cap as described in claim 1, which is characterized in that the upper water chamber is bigger than the lower water chamber.
4. engine cylinder cap as described in claim 1, which is characterized in that the upper water chamber and the lower water chamber pass through centre
The hole connection of fuel injector is installed, and the outer edge of the water chamber partition offers the connection upper water chamber and the lower water chamber
Aperture.
5. engine cylinder cap as described in claim 1, which is characterized in that the water outlet is located at the lower water chamber bottom and leans on
The outside of cylinder head ontology.
6. engine cylinder cap as described in claim 1, which is characterized in that the top fixation of the upper water chamber is offered into water
The bottom fixation in hole, the lower water chamber offers drainage hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282764.7A CN110056447A (en) | 2019-04-10 | 2019-04-10 | Engine cylinder cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282764.7A CN110056447A (en) | 2019-04-10 | 2019-04-10 | Engine cylinder cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056447A true CN110056447A (en) | 2019-07-26 |
Family
ID=67318662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910282764.7A Pending CN110056447A (en) | 2019-04-10 | 2019-04-10 | Engine cylinder cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056447A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201326468Y (en) * | 2008-12-09 | 2009-10-14 | 奇瑞汽车股份有限公司 | Cylinder cover with cooling water jacket |
| CN201339502Y (en) * | 2008-11-12 | 2009-11-04 | 广西玉柴机器股份有限公司 | Engine cooling system |
| CN103867332A (en) * | 2012-12-17 | 2014-06-18 | 安徽华菱汽车有限公司 | Water-cooled engine and cylinder cover thereof |
| CN105649748A (en) * | 2016-03-22 | 2016-06-08 | 浙江大学 | Intelligent engine cooling system based on reverse cooling and control method |
| CN108547705A (en) * | 2018-06-04 | 2018-09-18 | 广西玉柴机器股份有限公司 | Cylinder head with middle partition board |
| CN209586532U (en) * | 2019-04-10 | 2019-11-05 | 广西玉柴机器股份有限公司 | Engine cylinder cap |
-
2019
- 2019-04-10 CN CN201910282764.7A patent/CN110056447A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201339502Y (en) * | 2008-11-12 | 2009-11-04 | 广西玉柴机器股份有限公司 | Engine cooling system |
| CN201326468Y (en) * | 2008-12-09 | 2009-10-14 | 奇瑞汽车股份有限公司 | Cylinder cover with cooling water jacket |
| CN103867332A (en) * | 2012-12-17 | 2014-06-18 | 安徽华菱汽车有限公司 | Water-cooled engine and cylinder cover thereof |
| CN105649748A (en) * | 2016-03-22 | 2016-06-08 | 浙江大学 | Intelligent engine cooling system based on reverse cooling and control method |
| CN108547705A (en) * | 2018-06-04 | 2018-09-18 | 广西玉柴机器股份有限公司 | Cylinder head with middle partition board |
| CN209586532U (en) * | 2019-04-10 | 2019-11-05 | 广西玉柴机器股份有限公司 | Engine cylinder cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190726 |